Water Pump - Subaru 2009 IMPREZA Service Manual

4. Water Pump

A: REMOVAL
1) Remove the radiator. <Ref. to CO(H4SO)-19,
REMOVAL, Radiator.>
2) Remove the V-belts. <Ref. to ME(H4SO)-39,
REMOVAL, V-belt.>
3) Remove the crank pulley. <Ref. to ME(H4SO)-
46, REMOVAL, Crank Pulley.>
4) Remove the timing belt cover. <Ref. to
ME(H4SO)-48, REMOVAL, Timing Belt Cover.>
5) Remove the timing belt. <Ref. to ME(H4SO)-49,
TIMING BELT, REMOVAL, Timing Belt.>
6) Remove the automatic belt tension adjuster.
7) Remove the camshaft position sensor. <Ref. to
FU(H4SO)-28, REMOVAL, Camshaft Position
Sensor.>
8) Remove the cam sprocket LH. <Ref. to
ME(H4SO)-54, REMOVAL, Cam Sprocket.>
9) Remove the belt cover LH No. 2.
10) Remove the tensioner bracket.
11) Disconnect the hose from water pump.
Water Pump
12) Remove the water pump.
B: INSTALLATION
1) Install the water pump onto cylinder block LH.
NOTE:
• Use a new gasket.
• When installing the water pump, tighten the bolts
in two stages in alphabetical sequence as shown in
figure.
Tightening torque:
First
12 N·m (1.2 kgf-m, 8.9 ft-lb)
Second
CO-00016
12 N·m (1.2 kgf-m, 8.9 ft-lb)
2) Install the hose to water pump.
3) Install the tensioner bracket.
Tightening torque:
24.5 N·m (2.5 kgf-m, 18.1 ft-lb)
CO-00019
CO-00020
CO(H4SO)-15
(B)
(C)
(A)
(D)
(E)
(F)
COOLING
CO-00021
ME-02463
CO-00020